BBC Four Today

Liz McIvor recounts the story of 'canal mania' - a boom period of frenzied activity that helped develop Britain's modern financial economy, now centred in London

The presenter embarks on an eight-mile trip along the Caledonian Canal, which is regarded as one of the most ambitious waterways of its time

Professor Robert Bartlett explores the expansion and unchecked ambition of the Norman empire, and how its impact still resonates in today's culture and politics

A successful author is freed from a near-fatal car crash, but is horrified to discover his rescuer is a psychopathic fan. Oscar-winning thriller, with James Caan and Kathy Bates

Interview with renowned horror author Stephen King, known for popular and influential novels such as Carrie and The Shining

Part one of two. Professor Jim Al-Khalili examines how some of history's greatest minds began to uncover the secrets of the universe by using and manipulating light

Alastair Sooke examines sculpture in the 20th century, charting the artistic revolution that paved the way for the work of Gilbert & George and Damien Hirst

Liz McIvor recounts the story of 'canal mania' - a boom period of frenzied activity that helped develop Britain's modern financial economy, now centred in London

The presenter embarks on an eight-mile trip along the Caledonian Canal, which is regarded as one of the most ambitious waterways of its time

Professor Robert Bartlett explores the expansion and unchecked ambition of the Norman empire, and how its impact still resonates in today's culture and politics